diff --git a/doc/install-guide/source/environment-ntp-controller.rst b/doc/install-guide/source/environment-ntp-controller.rst
index 459942590d..347fc48db1 100644
--- a/doc/install-guide/source/environment-ntp-controller.rst
+++ b/doc/install-guide/source/environment-ntp-controller.rst
@@ -21,7 +21,7 @@ Install and configure components
 
    .. code-block:: console
 
-      # yum install chrony
+      # dnf install chrony
 
    For SUSE:
 
diff --git a/doc/install-guide/source/environment-ntp-other.rst b/doc/install-guide/source/environment-ntp-other.rst
index c7cbbcbf79..70d1f0edef 100644
--- a/doc/install-guide/source/environment-ntp-other.rst
+++ b/doc/install-guide/source/environment-ntp-other.rst
@@ -22,7 +22,7 @@ Install and configure components
 
    .. code-block:: console
 
-      # yum install chrony
+      # dnf install chrony
 
    For SUSE: